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Mechanically Driven Reorganization of Thermoresponsive Diblock Copolymer Assemblies in Water
Author(s) -
Kessel Stefanie,
Urbani Carl N.,
Monteiro Michael J.
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201102651
Subject(s) - copolymer , polystyrene , swelling , polymer , materials science , chemical engineering , polymer chemistry , poly(n isopropylacrylamide) , composite material , engineering
Controlled formation of a variety of 3D structures was observed at high polymer weight fractions in water from a single diblock, consisting of poly( N ‐isopropylacrylamide), PNIPAM, and polystyrene, PSTY segments. The structures form through a mechanical process driven by swelling of hydrophilic polymer segments upon a change in temperature (see picture, SDS=sodium dodecylsulfate).